Eric M. Fletcher
  • Beech Creek, PA
  • United States
Share on Facebook Share on Facebook Share Twitter

Eric M. Fletcher's Discussions

Winter condensation on windows in a house that is very well insulated.
53 Replies

This is my first post and I hope I have the formate correct, I live and build in central Pennsylvania. I built a house in 2004 using what I thought were the best practices at the time to insure it…Continue

Started this discussion. Last reply by Robert Riversong Nov 5, 2012.

 

Eric M. Fletcher's Page

Latest Activity

tedkidd replied to Eric M. Fletcher's discussion Winter condensation on windows in a house that is very well insulated.
"Ventless logs?  There's the source.   Eric, if you spend $1000 sealing windows and nothing changes, how will you feel?   Would you go on a diet without first stepping on a scale?   The first step is a comprehensive…"
Nov 5, 2012
Robert Hamilton replied to Eric M. Fletcher's discussion Winter condensation on windows in a house that is very well insulated.
"Robert.  I suspect you are correct.  Is there anything I can do to remedy "air sealing the perimeter," in a completed home?"
Nov 5, 2012
Robert Hamilton replied to Eric M. Fletcher's discussion Winter condensation on windows in a house that is very well insulated.
"Eric, I discovered your post while doing my own research on Crestline Windows and condensation.  I live in the mountains of western NC; we have a similar climate to central PA (garden zone 6a).  My home was built in 2002 with a complete…"
Nov 5, 2012
Robert Riversong replied to Eric M. Fletcher's discussion Winter condensation on windows in a house that is very well insulated.
"I build homes in northern New England with 8500 HDDs and winter minimum design temperatures of -10°. I agree that indoor humidity needs to be no more than 40%, but that much air exchange is not required to get there, as long as there are no…"
Sep 28, 2012
Ken wilson replied to Eric M. Fletcher's discussion Winter condensation on windows in a house that is very well insulated.
"I am referring to the terminology of the products used in the hvac trade by the vendors and tradespeople in the trade at least in the north central us climate. I am sure there are many products in the market that share the same common name. I own…"
Sep 28, 2012
Robert Riversong replied to Eric M. Fletcher's discussion Winter condensation on windows in a house that is very well insulated.
"No house needs 8 air changes per day, unless it's a very toxic environment. To meet the latest ASHRAE 62.2 ventilation standards (referenced in the IRC and state codes), a house needs in the range of 4-5 AC/day (0.16-0.24 ACH), depending on…"
Sep 28, 2012
Ken wilson replied to Eric M. Fletcher's discussion Winter condensation on windows in a house that is very well insulated.
"in general a home should ventilate approx, 8 air changes per day. As the home is tighter it will not have that amount naturally, so less than 8 air changes and any moisture produced through living in, cooking, bathing etc. is trapped inside and will…"
Sep 28, 2012
Robert Riversong replied to Eric M. Fletcher's discussion Winter condensation on windows in a house that is very well insulated.
"I don't know what you could possibly mean by "volume is NOT the measure" (of what?). ACH50, which is a volume air exchange metric, is the only one referenced in building codes and efficiency programs: 2009 IRC/IECC …"
Sep 23, 2012
tedkidd replied to Eric M. Fletcher's discussion Winter condensation on windows in a house that is very well insulated.
"The tool doesn't have the level of accuracy that would be necessary to split those nits.   Square footage and CFM50 are PLENTY to get you to the neighborhood for understanding relative value.  Is it a highly accurate model, no.…"
Sep 23, 2012
Robert Riversong replied to Eric M. Fletcher's discussion Winter condensation on windows in a house that is very well insulated.
"Actually, as raw data, CFM50 by itself is pretty meaningless, as a very small but leaky house could have a lower number than a very large and tight house. What matters is ACH50 (CFM50 compared to whole house air volume), and CFM per square foot of…"
Sep 23, 2012
Robert Riversong replied to Eric M. Fletcher's discussion Winter condensation on windows in a house that is very well insulated.
"The older Energy Star (pre-2011) required no more than 5ACH50. 1.5ACH50 is extremely tight in today's new home market. The world's strictest standard - Passive House - requires only 0.6ACH50. No house can achieve 0.05ACH50. You might want…"
Sep 23, 2012
tedkidd replied to Eric M. Fletcher's discussion Winter condensation on windows in a house that is very well insulated.
"Awesome!   .05 ACH is great, but ACH is like telling someone how much they weigh per inch of height.  Leaves a lot of opportunity for error or gaming or simply confusion.   CFM50 is the raw number.  The total weight.  Very…"
Sep 23, 2012
Eric M. Fletcher replied to Eric M. Fletcher's discussion Winter condensation on windows in a house that is very well insulated.
"not exactly sure but they said 1.5 is ok for the energy test they do for a local home building company to get energy star rated. I was showing .05. I will talk to them and get exact numbers "
Sep 23, 2012
tedkidd replied to Eric M. Fletcher's discussion Winter condensation on windows in a house that is very well insulated.
"Nice JOB!!!   What was the cfm50 number? "
Sep 23, 2012
Eric M. Fletcher replied to Eric M. Fletcher's discussion Winter condensation on windows in a house that is very well insulated.
"Hello Robert, I first want to thank you for insight into this issue and responses. First I was wrong in that the house was built in 2000. Time flys. I followed the advise of getting a blower door test done and found that I had constructed the…"
Sep 23, 2012
Curt Kinder replied to Eric M. Fletcher's discussion Winter condensation on windows in a house that is very well insulated.
"I second that motion - I've used Panasonic Whisper Greens on a couple occasions to solve a thorny IAQ problem at minimal operating expense."
Sep 16, 2012

Profile Information

Company
Fletcher's Red Apple Works

Eric M. Fletcher's Photos

Loading…
  • Add Photos
  • View All

Comment Wall (1 comment)

You need to be a member of Home Energy Pros to add comments!

Join Home Energy Pros

At 1:47pm on September 15, 2012, Diane Chojnowski said…

Hi Eric,

Welcome to Home Energy Pros. Feel free to join the conversation in the Forum and Groups. And share your energy efficiency photos, videos and upcoming events. If you're blogging about home performance, this is the place for you!

Don't forget to upload your profile photo. And add your location on our Member Map.

Thanks!

Diane, HEP Moderator

 
 
 

Home Energy Pros

Home Energy Pros was founded by the developers of Home Energy Saver Pro (sponsored by the U.S. Department of Energy,) and brought to you in partnership with Home Energy magazine.

Latest Activity

Colin Genge commented on Jim Gunshinan's blog post Energy Upgrade California—Up Close and Personal
"Pressurize the house to +25 Pa. Use smoke on the registers to identify leakage to outdoors then use…"
1 hour ago
Tim Reynolds replied to Alan Gindt's discussion Minneapolis Blower Door, Pressure Pan, and Bacharach CO 3 For Sale in the group Energy Auditing Equipment for Sale, Trade or to Purchase
"I was wondering if you would sell the pressure pan by itself and for how much? Thanks -Tim"
10 hours ago
Profile IconTim Reynolds and angela hines joined allen p tanner's group
Thumbnail

Energy Auditing Equipment for Sale, Trade or to Purchase

Discuss the pros and cons of the equipment you are interested in prior to purchase. Post equipment…See More
10 hours ago
Profile IconAllen Rathey, Kevin Love, Shannon Kahl and 1 more joined Home Energy Pros
10 hours ago
angela hines replied to Alan Gindt's discussion Minneapolis Blower Door, Pressure Pan, and Bacharach CO 3 For Sale in the group Energy Auditing Equipment for Sale, Trade or to Purchase
"What is the price for them together? What is the price just for the blower door set?"
yesterday
Alan Gindt replied to Alan Gindt's discussion Minneapolis Blower Door, Pressure Pan, and Bacharach CO 3 For Sale in the group Energy Auditing Equipment for Sale, Trade or to Purchase
"Yes"
yesterday
Anna Jursik's blog post was featured
yesterday
Everblue posted a status
"New Energy Auditor Jobs posted on our Massachusetts Job Board! Check them out: http://www.everblue.edu/hiring/job-board/massachusetts"
yesterday
Everblue posted events
yesterday
angela hines replied to Brooke Ingram's discussion 3 full sets of testing equipment available for sale! in the group Energy Auditing Equipment for Sale, Trade or to Purchase
"Hi is the Minneapolis blower door set still available?"
yesterday
angela hines replied to David Allen's discussion Like new! Great Deal! Minneapolis Blower Door system, Duct Blaster and Flir i-7 Infrared Camera for sale in the group Energy Auditing Equipment for Sale, Trade or to Purchase
"I am interested in the blower door and camera. Are they still available? If so i will buy. Please…"
yesterday
angela hines replied to Alan Gindt's discussion Minneapolis Blower Door, Pressure Pan, and Bacharach CO 3 For Sale in the group Energy Auditing Equipment for Sale, Trade or to Purchase
"Is this still for sale? I am interested and would want to buy."
yesterday

© 2014   Created by Lawrence Berkeley National Laboratory.

Badges  |  Report an Issue  |  Terms of Service